Display panel of a programmed computer system with a graphical user interface



The FIGURE is a front view of a display panel of a programmed computer system with a graphical user interface.

The broken line showing of a display panel and internal portions of the displayed image are included for the purpose of illustrating environmental structure; the broken lines form no part of the claimed design. 

We claim the ornamental design for a display panel of a programmed computer system with a graphical user interface, as shown and described. 